filer/tests/spec/fs.link.spec.js

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var util = require('../lib/test-utils.js');
var expect = require('chai').expect;
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describe('fs.link', function() {
beforeEach(util.setup);
afterEach(util.cleanup);
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it('should be a function', function() {
var fs = util.fs();
expect(fs.link).to.be.a('function');
});
it('should create a link to an existing file', function(done) {
var fs = util.fs();
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fs.open('/myfile', 'w+', function(error, fd) {
if(error) throw error;
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fs.close(fd, function(error) {
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if(error) throw error;
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fs.link('/myfile', '/myotherfile', function(error) {
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if(error) throw error;
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fs.stat('/myfile', function(error, result) {
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if(error) throw error;
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var _oldstats = result;
fs.stat('/myotherfile', function(error, result) {
expect(error).not.to.exist;
expect(result.nlinks).to.equal(2);
expect(result.dev).to.equal(_oldstats.dev);
expect(result.node).to.equal(_oldstats.node);
expect(result.size).to.equal(_oldstats.size);
expect(result.type).to.equal(_oldstats.type);
done();
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});
});
});
});
});
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});
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it('should create hard link to identical data node', function(done) {
var fs = util.fs();
var contents = 'Hello World!';
fs.writeFile('/file', contents, function(err) {
if(err) throw err;
fs.link('/file', '/hlink', function(err) {
if(err) throw err;
fs.readFile('/file', 'utf8', function(err, fileData) {
if(err) throw err;
fs.readFile('/hlink', 'utf8', function(err, hlinkData) {
if(err) throw err;
expect(fileData).to.equal(hlinkData);
done();
});
});
});
});
});
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it('should not follow symbolic links', function(done) {
var fs = util.fs();
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fs.stat('/', function (error, result) {
if (error) throw error;
expect(result).to.exist;
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fs.symlink('/', '/myfileLink', function (error) {
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if (error) throw error;
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fs.link('/myfileLink', '/myotherfile', function (error) {
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if (error) throw error;
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fs.lstat('/myfileLink', function (error, result) {
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if (error) throw error;
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var _linkstats = result;
fs.lstat('/myotherfile', function (error, result) {
expect(error).not.to.exist;
expect(result.dev).to.equal(_linkstats.dev);
expect(result.node).to.equal(_linkstats.node);
expect(result.size).to.equal(_linkstats.size);
expect(result.type).to.equal(_linkstats.type);
expect(result.nlinks).to.equal(2);
done();
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});
});
});
});
});
});
it('should not allow links to a directory', function(done) {
var fs = util.fs();
fs.mkdir('/mydir', function(error) {
if(error) throw error;
fs.link('/mydir', '/mydirlink', function(error) {
expect(error).to.exist;
expect(error.code).to.equal('EPERM');
done();
});
});
});
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});